1. On April 20, 1871, the Ku Klux Klan was declared an illegal organization in North Carolina. This was a significant moment in the state's history as the KKK had been terrorizing African Americans and their allies for years.

2. In 1951, a severe tornado outbreak struck North Carolina on April 20. Over 20 tornadoes were reported across the state, causing extensive damage and claiming the lives of 13 people.

3. On April 20, 1984, the North Carolina General Assembly designated the state's official flower as the dogwood blossom. The dogwood tree is prevalent in the state and blooms in the springtime, creating a beautiful scenic landscape.

4. In 2010, the Deepwater Horizon oil spill began in the Gulf of Mexico on April 20. While North Carolina was not directly impacted by the spill, it sparked a national conversation about offshore drilling and its potential environmental impact.

5. On April 20, 2018, North Carolina native and former professional basketball player Rasheed Wallace was inducted into the North Carolina Sports Hall of Fame. Wallace played for numerous teams throughout his 16-year career, including the University of North Carolina Tar Heels.